The biological approach to psychology primarily focuses on the brain and which other system?

• A. Digestive system
• B. Respiratory system
• C. Skeletal system
• D. Nervous system

Answer: (D)

Verified step by step guidance

1. Understand that the biological approach in psychology emphasizes the physical and biological bases of behavior, particularly focusing on structures and systems within the body that influence psychological processes.
2. Identify the key systems involved in controlling and regulating behavior and mental processes. The brain is central, but it works closely with another critical system responsible for transmitting signals throughout the body.
3. Recall that the nervous system is composed of the brain, spinal cord, and peripheral nerves, and it plays a crucial role in processing information and coordinating actions and responses.
4. Compare the options given: digestive, respiratory, skeletal, and nervous systems. Consider which system is directly involved in communication and control within the body, alongside the brain.
5. Conclude that the nervous system, together with the brain, is the primary focus of the biological approach in psychology because it underlies all neural and behavioral functions.